4-methyl-4-(2-methyl-5-oxo-3-phenylcyclopent-1-enyl)pentanoic acid methyl ester

Base Information

• Chemical Name: 4-methyl-4-(2-methyl-5-oxo-3-phenylcyclopent-1-enyl)pentanoic acid methyl ester
• CAS No.: 218898-83-0
• Molecular Formula: C₁₉H₂₄O₃
• Molecular Weight: 300.398
• Mol file: 218898-83-0.mol

Synonyms:4-methyl-4-(2-methyl-5-oxo-3-phenylcyclopent-1-enyl)pentanoic acid methyl ester

Chemical Property of 4-methyl-4-(2-methyl-5-oxo-3-phenylcyclopent-1-enyl)pentanoic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 4-methyl-4-(2-methyl-5-oxo-3-phenylcyclopent-1-enyl)pentanoic acid methyl ester

There total 6 articles about 4-methyl-4-(2-methyl-5-oxo-3-phenylcyclopent-1-enyl)pentanoic acid methyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

acetic acid (3aRS,7aSR)-3a,7,7-trimethyl-1-oxo-3-phenyl-3a,6,7,7a-tetrahydro-1H-inden-4-yl ester → 4-methyl-4-(2-methyl-5-oxo-3-phenylcyclopent-1-enyl)pentanoic acid methyl ester (218898-83-0)

Guidance literature:

Multi-step reaction with 6 steps

1.1: 97 percent / H₂ / 10 percent Pd/C / ethyl acetate / 10 h / 20 °C / 760 Torr

2.1: 95 percent / NaBH₄ / methanol / 3 h / 0 °C

3.1: aq. KOH / ethanol / 1 h / 20 °C

3.2: 4.23 g / m-CPBA / CH₂Cl₂ / 17 h / 20 °C

4.1: 90 percent / PCC / CH₂Cl₂ / 7 h / 20 °C

5.1: DBU / toluene / 0.17 h / 80 °C

6.1: 2.41 g / diethyl ether

With potassium hydroxide; sodium tetrahydroborate; hydrogen; 1,8-diazabicyclo[5.4.0]undec-7-ene; pyridinium chlorochromate; palladium on activated charcoal; In methanol; diethyl ether; ethanol; dichloromethane; ethyl acetate; toluene; 3.2: Baeyer-Villiger reaction;

DOI:10.1055/s-2002-33708

Reference yield:

5,5,8a-trimethyl-8-phenylhexahydrocyclopenta[b]oxepine-2,6-dione → 4-methyl-4-(2-methyl-5-oxo-3-phenylcyclopent-1-enyl)pentanoic acid methyl ester (218898-83-0)

Guidance literature:

Multi-step reaction with 2 steps

1: DBU / toluene / 0.17 h / 80 °C

2: 2.41 g / diethyl ether

With 1,8-diazabicyclo[5.4.0]undec-7-ene; In diethyl ether; toluene;

DOI:10.1055/s-2002-33708

Reference yield:

(5aRS,6RS,8RS,8aSR)-6-Hydroxy-5,5,8a-trimethyl-8-phenyloctahydrocyclopenta[b]oxepin-2-one → 4-methyl-4-(2-methyl-5-oxo-3-phenylcyclopent-1-enyl)pentanoic acid methyl ester (218898-83-0)

Guidance literature:

Multi-step reaction with 3 steps

1: 90 percent / PCC / CH₂Cl₂ / 7 h / 20 °C

2: DBU / toluene / 0.17 h / 80 °C

3: 2.41 g / diethyl ether

With 1,8-diazabicyclo[5.4.0]undec-7-ene; pyridinium chlorochromate; In diethyl ether; dichloromethane; toluene;

DOI:10.1055/s-2002-33708

upstream raw materials:

diazomethane